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Finding the Fourth Proportional to 8,969.30, 13,437.05 and 5,260.50

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Solution

The fourth proportional to 8,969.30, 13,437.05 and 5,260.50 is: 7,880.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,969.30 : 13,437.05 = 5,260.50 : x
  2. Step 2: Convert to fraction form
    8,969.30/13,437.05 = 5,260.50/x
  3. Step 3: Cross multiply
    8,969.30x = 13,437.05 × 5,260.50
  4. Step 4: Simplify right side
    8,969.30x = 70,685,575.22
  5. Step 5: Solve for x
    x = 70,685,575.22/8,969.30
  6. Step 6: Final answer
    x = 7,880.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.